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Finding the Fourth Proportional to 8,859.75, 13,224.82 and 7,808.84

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Solution

The fourth proportional to 8,859.75, 13,224.82 and 7,808.84 is: 11,656.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.75 : 13,224.82 = 7,808.84 : x
  2. Step 2: Convert to fraction form
    8,859.75/13,224.82 = 7,808.84/x
  3. Step 3: Cross multiply
    8,859.75x = 13,224.82 × 7,808.84
  4. Step 4: Simplify right side
    8,859.75x = 103,270,464.36
  5. Step 5: Solve for x
    x = 103,270,464.36/8,859.75
  6. Step 6: Final answer
    x = 11,656.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.